Riverton, WY weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Riverton now
Loading the National Weather Service forecast…
Riverton weather by the hour
Riverton weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Riverton.
This week in Riverton
Sunrise, sunset and moon in Riverton
What is the weather usually like in Riverton?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 88°F average high
- Januarycoldest month · 4°F average low
- 9.5 inprecipitation per year · 241 mm
- 44.3 insnowfall per year · 113 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Riverton: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station RIVERTON, WY US (USC00487760), adjusted for the elevation of Riverton.
Riverton weather month by month
Sunrise and sunset in Riverton through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:40 AM | 5:05 PM | 9 h 25 min |
| February | 7:08 AM | 5:46 PM | 10 h 37 min |
| March | 7:23 AM | 7:21 PM | 11 h 57 min |
| April | 6:29 AM | 7:57 PM | 13 h 28 min |
| May | 5:48 AM | 8:31 PM | 14 h 43 min |
| June | 5:31 AM | 8:56 PM | 15 h 24 min |
| July | 5:46 AM | 8:52 PM | 15 h 5 min |
| August | 6:18 AM | 8:17 PM | 13 h 59 min |
| September | 6:52 AM | 7:25 PM | 12 h 32 min |
| October | 7:26 AM | 6:32 PM | 11 h 6 min |
| November | 7:04 AM | 4:51 PM | 9 h 46 min |
| December | 7:36 AM | 4:41 PM | 9 h 4 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Riverton?
Riverton has a cold semi-arid climate. The warmest month is July, with an average high of 88°F (31°C), and the coldest is January, with average lows of 4°F (-15°C).
It gets about 9.5 inches (241 mm) of precipitation a year. The wettest month is May and the driest is December. Snow is common: about 44 inches fall in an average year.
The best time to visit Riverton is June to September. At 4,951 ft of elevation, nights are cool even in summer. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Riverton
Weather in towns near Riverton
Questions about the weather in Riverton
What is the hottest month in Riverton?
July, with an average high of 88°F (31°C).
What is the coldest month in Riverton?
January, with an average low of 4°F (-15°C).
How much does it rain in Riverton?
About 9.5 inches (241 mm) a year; the wettest month is May.
Does it snow in Riverton?
Yes, about 44 inches of snow fall in an average year.
When is the best time to visit Riverton?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Riverton have?
Cold semi-arid (Köppen BSk).
What is the weather like in Riverton in November?
Highs average 43°F and lows 17°F, with about 0.4 inches of precipitation.
What time is sunrise in Riverton?
Around 7:04 AM in mid-November, and sunset around 4:51 PM. Today’s exact times are shown above.
Where does this Riverton weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Riverton.
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